[davewongillies]

And if some tool you use doesn't have completions, writing completions for fish are infinitely easier than bash

[robin_reala]

If anyone is interested in comparing and contrasting, the Standard Ebooks tooling has the same completions for:

Bash: https://github.com/standardebooks/tools/blob/master/se/compl...

ZSH: https://github.com/standardebooks/tools/blob/master/se/compl...

Fish: https://github.com/standardebooks/tools/blob/master/se/compl...